Updated: July 25, 2023

Introduction

Perilla plant, also known as shiso or Japanese basil, is a popular herb that is commonly used in Asian cuisine. However, like any other plant, perilla can be susceptible to various pests and insects, including slaters. Slaters, also known as woodlice or pillbugs, are small crustaceans that can cause damage to the leaves and stems of the perilla plant if left untreated. In this article, we will discuss effective methods to get rid of slaters on your perilla plant and protect your herb garden.

Identification of Slaters

Before diving into the methods of eradication, it is important to correctly identify slaters on your perilla plant. Slaters are small, oval-shaped creatures that range in color from gray to brown. They have segmented bodies and are typically around 1 cm long. Slaters have multiple pairs of legs and move in a characteristic manner, curling up into a ball when threatened.

Prevention is the Key

As with any pest problem, prevention is always the best approach. By implementing a few preventive measures, you can reduce the likelihood of slaters infesting your perilla plant.

  1. Maintain proper drainage: Slaters thrive in moist environments. Ensure that your perilla plant is planted in well-draining soil and avoid overwatering.

  2. Clear debris: Slaters often hide in leaf litter and decaying plant material. Regularly clean up fallen leaves and other debris around your perilla plant to eliminate potential hiding spots for slaters.

  3. Create a barrier: Consider placing a physical barrier around your perilla plant to prevent slaters from reaching it. You can use materials such as copper tape or diatomaceous earth as an effective deterrent.

Natural Remedies for Slaters

If you have noticed slaters on your perilla plant, there are several natural remedies you can try before resorting to chemical pesticides. These methods are safe for both your perilla plant and the environment.

  1. Beer trap: Slaters are attracted to the smell of beer. Bury a small container, such as a yogurt cup, in the soil near your perilla plant and fill it halfway with beer. The slaters will be lured into the trap and drown.

  2. Citrus peel: Slaters dislike the scent of citrus fruits. Place citrus peels, such as lemon or orange, near your perilla plant to repel them. Replace the peels every few days for maximum effectiveness.

  3. Saltwater solution: Create a saltwater solution by dissolving salt in water. Spray this solution directly onto the affected areas of your perilla plant. The high salt concentration will dehydrate and kill the slaters.

  4. Beneficial insects: Introduce natural predators of slaters, such as ground beetles or centipedes, into your garden. These predators will feed on the slaters and help control their population.

Chemical Control Options

If natural remedies fail to eliminate the slater infestation on your perilla plant, you may consider using chemical control options. However, it is important to use these methods as a last resort and follow the instructions carefully to minimize any negative impacts.

  1. Insecticidal soap: Insecticidal soaps are effective in controlling a wide range of pests, including slaters. Spray a commercially available insecticidal soap onto your perilla plant, focusing on the affected areas. Repeat the application as necessary.

  2. Pyrethrin-based insecticides: Pyrethrin-based insecticides are derived from chrysanthemum flowers and are relatively safe for use on edible plants. Follow the instructions on the product label and apply the insecticide to your perilla plant as directed.

Conclusion

Slaters can be a nuisance to your perilla plant, but with the right strategies, you can effectively control and eliminate them. Prevention is key, so make sure to maintain proper drainage, clear debris, and create barriers to reduce the chances of slaters infesting your perilla plant. If they do appear, natural remedies such as beer traps, citrus peels, saltwater solutions, and beneficial insects can be effective in getting rid of them. Only resort to chemical control options if necessary, and always follow the instructions carefully to ensure the safety of your perilla plant and the environment. With these methods in mind, you can protect your perilla plant from slaters and enjoy a healthy herb garden.